External speakers not listed in sound output list
I have a set of Sony SRS-X3 bluetooth speakers which I use with a Macbook pro running El Capitan 10.11.5
Recently I have been unable to use them as they no longer appear under the OUTPUT list in sound preferences.
The device is connected and appears in the Bluetooth device list. I can even get to the sound preferences menu through the device tab.
However the device does not show up in the sound output list.
I have tried the Command-option-P-R restart, restarting both the device and computer multiple times but cannot get them to work.
No idea why this problem started.
Speakers play sound fine from my iPhone and iPad.ciated
Any help would be appreciated
OS X El Capitan (10.11.5)